JP2000513480A - 高分子電解質膜型燃料電池用ガス拡散電極 - Google Patents
高分子電解質膜型燃料電池用ガス拡散電極Info
- Publication number
- JP2000513480A JP2000513480A JP09520157A JP52015797A JP2000513480A JP 2000513480 A JP2000513480 A JP 2000513480A JP 09520157 A JP09520157 A JP 09520157A JP 52015797 A JP52015797 A JP 52015797A JP 2000513480 A JP2000513480 A JP 2000513480A
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- Prior art keywords
- gas diffusion
- diffusion electrode
- electrode according
- layer
- catalytically active
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
- H01M4/8803—Supports for the deposition of the catalytic active composition
- H01M4/8807—Gas diffusion layers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
- C25B11/03—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form perforated or foraminous
- C25B11/031—Porous electrodes
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
- C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
- C25B9/23—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms comprising ion-exchange membranes in or on which electrode material is embedded
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
- H01M4/8825—Methods for deposition of the catalytic active composition
- H01M4/8828—Coating with slurry or ink
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/96—Carbon-based electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inert Electrodes (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Fuel Cell (AREA)
- Carbon And Carbon Compounds (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.導電性、疎水性、およびガス透過性を有する少なくとも1層のガス拡散層 を含むガス拡散電極であって、該ガス拡散層が、10mS/cm以上のバルク伝 導率を有する少なくとも1種の導電性物質で含浸された機械的に安定な担体物質 を含むガス拡散電極。 2.該ガス拡散電極が少なくとも1層のガス拡散層を含み、その層中において 機械的に安定な該担体物質が不織布、織布、または紙である請求項1記載のガス 拡散電極。 3.該機械的に安定な担体物質が、炭素繊維、ガラス繊維、または有機ポリマ ーを含む繊維を含む請求項2記載のガス拡散電極。 4.該機械的に安定な担体物質が単位面積当たり150g/m2未満の重量を 有する請求項1〜3のいずれかに記載のガス拡散電極。 5.該担体物質が20〜99.9%の範囲の開放気孔率を有する請求項1〜4 のいずれかに記載のガス拡散電極。 6.該導電性物質が炭素および/または金属を含む請求項1〜5のいずれかに 記載のガス拡散電極。 7.1〜4層のガス拡散層を含む請求項1〜6のいずれかに記載のガス拡散電 極。 8.触媒活性層を含む請求項1〜7のいずれかに記載のガス拡散電極。 9.該触媒活性層が a)少なくとも1種の触媒活性物質および b)1種以上のイオン導電性ポリマーおよび、必要ならば、 c)1種以上の疎水性物質 を含む請求項8記載のガス拡散電極。 10.該触媒活性物質が、遷移族VIIIの少なくとも1種の金属、または遷移族 VIIIの1種以上の金属ととくに遷移族IVの金属との合金である請求項9記載のガ ス拡散電極。 11.触媒活性物質対イオン導電性ポリマーの質量比が1:100〜100: 1の範囲にある請求項9または10のいずれかに記載のガス拡散電極。 12.該担体物質からの距離が大きくなるにつれて、該触媒層に対して垂直方 向の該触媒活性物質濃度が減少し、かつ該イオン導電性ポリマー濃度が増大する 請求項9〜11のいずれかに記載のガス拡散電極。 13.導電性メッシュによって機械的に補強される請求項1〜13のいずれか に記載のガス拡散電極。 14.該導電性メッシュが金属メッシュであるかまたは金属被覆ポリマーを含 む請求項13記載のガス拡散電極。 15.100mΩ/cm2以下の表面電気抵抗を有する請求項1〜14のいず れかに記載のガス拡散電極。 16.導電性、疎水性、およびガス透過性を有する少なくとも1層のガス拡散 層を含むガス拡散電極の製造方法であって、該方法が下記の a)導電性物質および少なくとも1種の液体を含む懸濁液を調製し、 b)結合剤物質および少なくとも1種の液体から1種以上の懸濁液または 溶液を調製し、 c)工程a)で調製した該懸濁液と工程b)で調製した少なくとも1種の 懸濁液とを激しく混合し、 d)機械的に安定な担体物質に工程c)で調製した該混合物を含浸させ、 e)該含浸担体物質を乾燥し、 f)該含浸担体物質を少なくとも200℃の温度で焼結する 工程を含む方法。 17.該導電性物質が10mS/cm以上の電気的バルク伝導率を有する請求 項16記載のガス拡散電極の製造法。 18.該ガス拡散電極が少なくとも1層のガス拡散層を含み、その層中におけ る機械的に安定な該担体物質が不織布、織布または紙である請求項16または1 7記載のガス拡散電極の製造法。 19.機械的に安定な該担体物質が単位面積当たり150g/m2未満の重量 を有する請求項16〜18のいずれかに記載のガス拡散電極の製造法。 20.該工程d)およびe)を一回以上繰り返す請求項16〜19のいずれか に記載のガス拡散電極の製造法。 21.1層以上の焼結ガス拡散層を、最高500バールの圧力および最高40 0℃の温度において相互に圧し付ける請求項16〜20のいずれかに記載のガス 拡散電極の製造法。 22.工程a)で調製した該懸濁液が該表面張力を低下させる物質を含む請求 項16〜21のいずれかに記載のガス拡散電極の製造法。 23.該結合剤物質と該導電性物質とを1:100〜100:1の質量比で使 用する請求項16〜222のいずれかに記載のガス拡散電極の製造法。 24.ガス拡散電極の1つの表面に触媒活性層を被覆する方法であって、その 被覆方法が次の a)少なくとも1種の触媒活性物質と、溶解または懸濁させた1種以上の イオン導電性ポリマーとを激しく混合し、 b)工程a)で調製した該懸濁液を該ガス拡散電極の1つの表面に適用し 、 c)適用した該層を乾燥する 工程を含む方法。 25.請求項1〜15のいずれかに記載のガス拡散電極を使用する請求項24 記載の方法。 26.工程a)で調製した該懸濁液の適用前に該懸濁液の一部を蒸発させる請 求項24または25記載の方法。 27.該工程b)およびc)を一回以上繰り返す請求項24〜26のいずれか に項記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19544323A DE19544323A1 (de) | 1995-11-28 | 1995-11-28 | Gasdiffusionselektrode für Polymerelektrolytmembran-Brennstoffzellen |
DE19544323.3 | 1995-11-28 | ||
PCT/EP1996/005206 WO1997020358A1 (de) | 1995-11-28 | 1996-11-26 | Gasdiffusionselektrode für polymerelektrolytmembran-brennstoffzellen |
Publications (2)
Publication Number | Publication Date |
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JP2000513480A true JP2000513480A (ja) | 2000-10-10 |
JP4334618B2 JP4334618B2 (ja) | 2009-09-30 |
Family
ID=7778604
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52015797A Expired - Fee Related JP4334618B2 (ja) | 1995-11-28 | 1996-11-26 | 高分子電解質膜型燃料電池用ガス拡散電極 |
JP52017597A Expired - Fee Related JP3919818B2 (ja) | 1995-11-28 | 1996-11-28 | 重合体電解質メンブラン燃料電池用のガス拡散電極 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52017597A Expired - Fee Related JP3919818B2 (ja) | 1995-11-28 | 1996-11-28 | 重合体電解質メンブラン燃料電池用のガス拡散電極 |
Country Status (14)
Country | Link |
---|---|
US (1) | US5998057A (ja) |
EP (2) | EP0867048B1 (ja) |
JP (2) | JP4334618B2 (ja) |
KR (1) | KR100437572B1 (ja) |
CN (2) | CN1191653C (ja) |
AT (2) | ATE213567T1 (ja) |
AU (1) | AU712037B2 (ja) |
BR (2) | BR9611769A (ja) |
CA (1) | CA2238738C (ja) |
DE (3) | DE19544323A1 (ja) |
DK (2) | DK0867048T3 (ja) |
ES (2) | ES2175157T3 (ja) |
PT (1) | PT867048E (ja) |
WO (2) | WO1997020358A1 (ja) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10261421A (ja) * | 1997-03-17 | 1998-09-29 | Japan Gore Tex Inc | 高分子固体電解質燃料電池用ガス拡散層材料及びその接合体 |
JP2002117865A (ja) * | 2000-04-28 | 2002-04-19 | Dmc 2 Degussa Metals Catalysts Cerdec Ag | ポリマー電解質−燃料電池用のガス分配構造体、この種の電池用の膜−電極ユニット、ポリマー電解質−燃料電池、及びガス分配構造体の製造方法 |
JP2002298856A (ja) * | 2001-03-30 | 2002-10-11 | Honda Motor Co Ltd | 固体高分子型燃料電池 |
JP2005142163A (ja) * | 2003-11-07 | 2005-06-02 | General Motors Corp <Gm> | 燃料電池用の電気接触エレメント |
JP2005190745A (ja) * | 2003-12-24 | 2005-07-14 | Mitsubishi Materials Corp | 固体高分子型燃料電池のガス拡散層用部材およびその製造方法 |
JP2005209607A (ja) * | 2003-12-24 | 2005-08-04 | Mitsubishi Materials Corp | 固体高分子型燃料電池のガス拡散層用部材およびその製造方法 |
EP1950826A1 (en) | 2007-01-23 | 2008-07-30 | Japan Vilene Company, Ltd. | Gas diffusion electrode substrate, gas diffusion electrode and process for its production, and fuel cell |
US7537852B2 (en) | 2002-02-15 | 2009-05-26 | Toyo Boseki Kabushiki Kaisha | Composite ion exchange membrane and electrolyte membrane electrode assembly |
JP2009231024A (ja) * | 2008-03-21 | 2009-10-08 | Toyota Motor Corp | 燃料電池スタックおよびそれを備えた燃料電池システム |
WO2011027550A1 (ja) * | 2009-09-03 | 2011-03-10 | パナソニック株式会社 | 燃料電池用ガス拡散層及びその製造方法、膜電極接合体、並びに燃料電池 |
JP4896298B2 (ja) * | 1999-05-14 | 2012-03-14 | スリーエム イノベイティブ プロパティズ カンパニー | ハイブリッド膜電極集合体 |
US8568942B2 (en) | 2006-09-07 | 2013-10-29 | Toyota Jidosha Kabushiki Kaisha | Gas diffusion electrode, method for manufacturing the same and membrane electrode assembly |
JP5810263B2 (ja) * | 2010-02-09 | 2015-11-11 | パナソニックIpマネジメント株式会社 | 電気集塵機 |
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- 1996-11-26 KR KR10-1998-0704115A patent/KR100437572B1/ko not_active IP Right Cessation
- 1996-11-26 CN CNB961986115A patent/CN1191653C/zh not_active Expired - Fee Related
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Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH10261421A (ja) * | 1997-03-17 | 1998-09-29 | Japan Gore Tex Inc | 高分子固体電解質燃料電池用ガス拡散層材料及びその接合体 |
JP4896298B2 (ja) * | 1999-05-14 | 2012-03-14 | スリーエム イノベイティブ プロパティズ カンパニー | ハイブリッド膜電極集合体 |
JP2002117865A (ja) * | 2000-04-28 | 2002-04-19 | Dmc 2 Degussa Metals Catalysts Cerdec Ag | ポリマー電解質−燃料電池用のガス分配構造体、この種の電池用の膜−電極ユニット、ポリマー電解質−燃料電池、及びガス分配構造体の製造方法 |
JP2002298856A (ja) * | 2001-03-30 | 2002-10-11 | Honda Motor Co Ltd | 固体高分子型燃料電池 |
US7537852B2 (en) | 2002-02-15 | 2009-05-26 | Toyo Boseki Kabushiki Kaisha | Composite ion exchange membrane and electrolyte membrane electrode assembly |
JP2005142163A (ja) * | 2003-11-07 | 2005-06-02 | General Motors Corp <Gm> | 燃料電池用の電気接触エレメント |
JP2005190745A (ja) * | 2003-12-24 | 2005-07-14 | Mitsubishi Materials Corp | 固体高分子型燃料電池のガス拡散層用部材およびその製造方法 |
JP2005209607A (ja) * | 2003-12-24 | 2005-08-04 | Mitsubishi Materials Corp | 固体高分子型燃料電池のガス拡散層用部材およびその製造方法 |
US8568942B2 (en) | 2006-09-07 | 2013-10-29 | Toyota Jidosha Kabushiki Kaisha | Gas diffusion electrode, method for manufacturing the same and membrane electrode assembly |
EP1950826A1 (en) | 2007-01-23 | 2008-07-30 | Japan Vilene Company, Ltd. | Gas diffusion electrode substrate, gas diffusion electrode and process for its production, and fuel cell |
JP2009231024A (ja) * | 2008-03-21 | 2009-10-08 | Toyota Motor Corp | 燃料電池スタックおよびそれを備えた燃料電池システム |
WO2011027550A1 (ja) * | 2009-09-03 | 2011-03-10 | パナソニック株式会社 | 燃料電池用ガス拡散層及びその製造方法、膜電極接合体、並びに燃料電池 |
US9077028B2 (en) | 2009-09-03 | 2015-07-07 | Panasonic Intellectual Property Management Co., Ltd. | Gas diffusion layer for fuel cell, manufacturing method thereof, membrane electrode assembly, and fuel cell |
JP5810263B2 (ja) * | 2010-02-09 | 2015-11-11 | パナソニックIpマネジメント株式会社 | 電気集塵機 |
Also Published As
Publication number | Publication date |
---|---|
DK0864183T3 (da) | 2001-03-05 |
WO1997020359A1 (de) | 1997-06-05 |
DE59608774D1 (de) | 2002-03-28 |
EP0864183B1 (de) | 2000-11-08 |
AU1094997A (en) | 1997-06-19 |
CN1191653C (zh) | 2005-03-02 |
KR100437572B1 (ko) | 2004-09-10 |
DK0867048T3 (da) | 2002-06-03 |
AU712037B2 (en) | 1999-10-28 |
WO1997020358A1 (de) | 1997-06-05 |
DE19544323A1 (de) | 1997-06-05 |
EP0867048A1 (de) | 1998-09-30 |
EP0864183A1 (de) | 1998-09-16 |
CA2238738C (en) | 2010-04-13 |
BR9611769A (pt) | 1999-02-23 |
CN1166020C (zh) | 2004-09-08 |
US5998057A (en) | 1999-12-07 |
CN1206504A (zh) | 1999-01-27 |
JP3919818B2 (ja) | 2007-05-30 |
JP4334618B2 (ja) | 2009-09-30 |
JP2000500910A (ja) | 2000-01-25 |
EP0867048B1 (de) | 2002-02-20 |
ATE197516T1 (de) | 2000-11-11 |
PT867048E (pt) | 2002-08-30 |
BR9611783A (pt) | 1999-02-23 |
CA2238738A1 (en) | 1997-06-05 |
ES2175157T3 (es) | 2002-11-16 |
ES2153606T3 (es) | 2001-03-01 |
DE59606133D1 (de) | 2000-12-14 |
KR19990071833A (ko) | 1999-09-27 |
CN1202984A (zh) | 1998-12-23 |
ATE213567T1 (de) | 2002-03-15 |
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